Patents by Inventor Suresh Ramasamy

Suresh Ramasamy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11843185
    Abstract: An information handling system (IHS) includes an antenna system. The antenna system includes an antenna; a radiating element, the radiating element being capacitively coupled with the antenna; and, a tuner module electrically coupled to the antenna and the radiating element, the tuner module tuning the antenna and the radiating element.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: December 12, 2023
    Assignee: Dell Products L.P.
    Inventors: Suresh Ramasamy, Changsoo Kim, Sumana Pallampati, Anthony J. Sanchez
  • Patent number: 11832196
    Abstract: An information handling system includes a wireless local area network (WLAN) radio and a system embedded controller (EC). An antenna controller may determine an antenna type from a group consisting of a passive antenna and an active antenna, map a platform-unique subsystem identifier in accordance with the antenna type, configure a heartbeat message path to the system EC based on the antenna type, and control a WLAN radio transmit power level based on a heartbeat status.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: November 28, 2023
    Assignee: Dell Products L.P.
    Inventors: Suresh Ramasamy, Lars Fredrik Proejts, Ravichandra Rama, Ching Wei Chang
  • Patent number: 11832195
    Abstract: An information handling system includes a wireless local area network (WLAN) radio and a system embedded controller (EC). An antenna controller may determine an antenna type from a group consisting of a passive antenna and an active antenna, map a platform-unique subsystem identifier in accordance with the antenna type, configure a heartbeat message path to the system EC based on the antenna type, and control a WLAN radio transmit power level based on a heartbeat status.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: November 28, 2023
    Assignee: Dell Products L.P.
    Inventors: Suresh Ramasamy, Lars Fredrik Proejts, Ravichandra Rama
  • Patent number: 11822395
    Abstract: An information handling system EMI shield system couples to a circuit board to enclose an electronic device in a Faraday cage and includes a surface painted with a graphene paint to aid in dissipation of excess thermal energy from the electronic device. The EMI shield system has a frame that couples to the circuit board and interfaces with ground to define a boundary around an electronic device connector and has a shield that couples as a separate piece over the frame to enclose the electronic device. Graphene paint applied to some or all of the shield encourages rejection of excess thermal energy from within shield.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: November 21, 2023
    Assignee: Dell Products L.P.
    Inventors: Geroncio Tan, Changsoo Kim, Suresh Ramasamy, Timothy C. Shaw, Salvador D. Jimenez, III, Pomin Shih, Deeder M. Aurongzeb
  • Patent number: 11800600
    Abstract: An information handling system supports multi-radio and multi-antenna wireless communication by routing coaxial cables between the radios and antennas through a cable clip of a conductive material coupled to system ground and interfaced with the coaxial cable ground sheath through an opening formed in the coaxial cable outer casing. A current source of the radio frequency applies a current in phase with the radio signal to the coaxial cable outer casing to suppress crosstalk with coaxial cables of different frequencies.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: October 24, 2023
    Assignee: Dell Products L.P.
    Inventors: Geroncio Tan, Changsoo Kim, Suresh Ramasamy, Timothy C. Shaw, Salvador D. Jimenez, III, Pomin Shih, Deeder M. Aurongzeb
  • Publication number: 20230299484
    Abstract: An antenna front-end module, a method, and an information handling system are provided. An antenna front-end module comprises a circuit board. The circuit board comprises an antenna tuning circuit adapted to tune a feed impedance of an antenna, the antenna electrically connected to the circuit board, and an antenna proximity sensing circuit adapted to obtain proximity sensing information indicative of proximity of a part of a human body to the antenna. A method comprises obtaining, at an antenna proximity sensing circuit on a circuit board, proximity sensing information indicative of proximity of a part of a human body to an antenna, the antenna electrically connected to the circuit board, and, in response to the obtaining, providing, to an antenna tuning circuit on the circuit board, a tuning parameter value to adapt antenna tuning for the proximity of the part of the human body to the antenna.
    Type: Application
    Filed: May 30, 2023
    Publication date: September 21, 2023
    Inventors: Ching Wei Chang, Suresh Ramasamy, Changsoo Kim
  • Patent number: 11765601
    Abstract: An information handling system (IHS) boosts a cellular signal. The information handling system boosts the cellular signal by providing an information handling system with a cellular communication capability; pairing the information handling system with a mobile device; determining whether a cellular signal received by the mobile device is weak; and, configuring the information handling system to perform a cellular signal boosting operation when the cellular signal received by the mobile device is weak.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: September 19, 2023
    Assignee: Dell Products L.P.
    Inventors: Harpreet S. Narula, Suresh Ramasamy, David Tseng
  • Patent number: 11758482
    Abstract: A method and information handling system (IHS) for dynamic multiple antenna sensor and wireless power management for multiple radio types and multiple wireless configurations comprise enabling, by an antenna controller (AC), a proximity sensor (P-sensor) connected interrupt to be generated by a P-sensor; upon activation of the P-sensor connected interrupt, determining, at the AC, a reason for the P-sensor connected interrupt; when the reason is a steady-state detection event, calibrating, by the AC, the P-sensor; when the reason is a proximity detection event, storing, by the AC, a radio transmit power lookup table, the radio transmit power lookup table mapping a P-sensor channel, an antenna subsystem physical configuration value, and an IHS physical configuration usage mode value to a radio transmit power level value; and configuring, at a radio, the radio to operate at a radio transmit power level corresponding to the radio transmit power level value.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: September 12, 2023
    Assignee: Dell Products L.P.
    Inventors: Suresh Ramasamy, Ching Wei Chang, Lars Fredrik Proejts, Ravichandra Rama
  • Patent number: 11747381
    Abstract: An information handling system includes a data radio connected to an antenna system, and a proximity sensor connected to a proximity sensor probe. An antenna controller (AC) may determine whether a capacitance measurement coarsely indicates a specific antenna configuration or a coarse fault; and configure, when the capacitance measurement indicates a coarse fault, a data radio to operate at a failsafe radio transmit power level; determine, when the capacitance measurement indicates the specific antenna configuration, whether a detail capacitance measured with respect to the antenna system indicates proper antenna configuration or an out-of-range value; configure, when the detail capacitance indicates proper antenna configuration, the data radio to operate normally; and configure, when the detail capacitance indicates an out-of-range value, the data radio to operated in a mode where a performance parameter of the data radio is particularly monitored.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: September 5, 2023
    Assignee: Dell Products L.P.
    Inventors: Lars Fredrik Proejts, Ravichandra Rama, Suresh Ramasamy
  • Patent number: 11710899
    Abstract: An antenna front-end module, a method, and an information handling system are provided. An antenna front-end module comprises a circuit board. The circuit board comprises an antenna tuning circuit adapted to tune a feed impedance of an antenna, the antenna electrically connected to the circuit board, and an antenna proximity sensing circuit adapted to obtain proximity sensing information indicative of proximity of a part of a human body to the antenna. A method comprises obtaining, at an antenna proximity sensing circuit on a circuit board, proximity sensing information indicative of proximity of a part of a human body to an antenna, the antenna electrically connected to the circuit board, and, in response to the obtaining, providing, to an antenna tuning circuit on the circuit board, a tuning parameter value to adapt antenna tuning for the proximity of the part of the human body to the antenna.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: July 25, 2023
    Assignee: Dell Products L.P.
    Inventors: Ching Wei Chang, Suresh Ramasamy, Changsoo Kim
  • Patent number: 11678275
    Abstract: An information handling system includes an antenna controller that may receive, from a platform sensor, platform sensor information as to a physical configuration usage mode, and receive, from a proximity sensor, information as to a part of a body of a user to an antenna. The antenna controller may also obtain a radio transmit power level value corresponding to the platform sensor information and to the proximity sensing information, send the radio transmit power level value to a radio via a serial interface, and reconfigure the antenna in response to the platform sensor information and the proximity sensing information. A radio may adjust a radio transmit power level to an adjusted radio transmit power level based on the radio transmit power level value.
    Type: Grant
    Filed: July 24, 2021
    Date of Patent: June 13, 2023
    Assignee: Dell Products L.P.
    Inventors: Suresh Ramasamy, Lars Fredrik Proejts, Ching Wei Chang, Ravichandra Rama
  • Publication number: 20230094613
    Abstract: An information handling system (IHS) boosts a cellular signal. The information handling system boosts the cellular signal by providing an information handling system with a cellular communication capability; pairing the information handling system with a mobile device; determining whether a cellular signal received by the mobile device is weak; and, configuring the information handling system to perform a cellular signal boosting operation when the cellular signal received by the mobile device is weak.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 30, 2023
    Applicant: Dell Products L.P.
    Inventors: Harpreet S. Narula, Suresh Ramasamy, David Tseng
  • Patent number: 11601800
    Abstract: A converged wireless subsystem environment includes a converged wireless front end controller. The converged wireless front end controller includes: a WiFi modem control circuit, the WiFi modem control circuit generating WiFi modem control information for controlling a WiFi modem; a cellular radio control circuit, the cellular radio control circuit generating cellular radio control information for controlling a cellular radio; a WiFi modem sideband interface, the WiFi modem control circuit communicating the WiFi modem control information with the WiFi modem via the WiFi modem sideband interface; and, a cellular radio sideband interface, the cellular radio control circuit communicating the cellular radio control information with the cellular radio via the cellular radio sideband interface.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: March 7, 2023
    Assignee: Dell Products L.P.
    Inventors: Suresh Ramasamy, Lars Fredrik Proejts, Venkata S. Prayaga
  • Publication number: 20230037441
    Abstract: A portable information handling system structure located between housing hinges along one side of the housing has first and second antenna disposed at opposing ends with a cooling fan between the first and second antenna and over the antenna structure to isolate the first and second antenna. In one embodiment, a parasitic element disposed between the first and second antenna and under the cooling fan has resonance tuned to isolate wireless signals of a frequency supported by the first and second antenna.
    Type: Application
    Filed: October 25, 2022
    Publication date: February 9, 2023
    Applicant: Dell Products L.P.
    Inventors: Ching Wei Chang, Suresh Ramasamy, Allen B. McKittrick, Jeffery D. Kane
  • Publication number: 20230029875
    Abstract: An information handling system supports multi-radio and multi-antenna wireless communication by routing coaxial cables between the radios and antennas through a cable clip of a conductive material coupled to system ground and interfaced with the coaxial cable ground sheath through an opening formed in the coaxial cable outer casing. A current source of the radio frequency applies a current in phase with the radio signal to the coaxial cable outer casing to suppress crosstalk with coaxial cables of different frequencies.
    Type: Application
    Filed: July 30, 2021
    Publication date: February 2, 2023
    Applicant: Dell Products L.P.
    Inventors: Geroncio Tan, Changsoo Kim, Suresh Ramasamy, Timothy C. Shaw, Salvador D. Jimenez, III, Pomin Shih, Deeder M. Aurongzeb
  • Publication number: 20230035512
    Abstract: An information handling system EMI shield system couples to a circuit board to enclose an electronic device in a Faraday cage and includes a surface painted with a graphene paint to aid in dissipation of excess thermal energy from the electronic device. The EMI shield system has a frame that couples to the circuit board and interfaces with ground to define a boundary around an electronic device connector and has a shield that couples as a separate piece over the frame to enclose the electronic device. Graphene paint applied to some or all of the shield encourages rejection of excess thermal energy from within shield.
    Type: Application
    Filed: July 30, 2021
    Publication date: February 2, 2023
    Applicant: Dell Products L.P.
    Inventors: Geroncio Tan, Changsoo Kim, Suresh Ramasamy, Timothy C. Shaw, Salvador D. Jimenez, III, Pomin Shih, Deeder M. Aurongzeb
  • Publication number: 20230025551
    Abstract: A method and information handling system (IHS) for dynamic multiple antenna sensor and wireless power management for multiple radio types and multiple wireless configurations comprise enabling, by an antenna controller (AC), a proximity sensor (P-sensor) connected interrupt to be generated by a P-sensor; upon activation of the P-sensor connected interrupt, determining, at the AC, a reason for the P-sensor connected interrupt; when the reason is a steady-state detection event, calibrating, by the AC, the P-sensor; when the reason is a proximity detection event, storing, by the AC, a radio transmit power lookup table, the radio transmit power lookup table mapping a P-sensor channel, an antenna subsystem physical configuration value, and an IHS physical configuration usage mode value to a radio transmit power level value; and configuring, at a radio, the radio to operate at a radio transmit power level corresponding to the radio transmit power level value.
    Type: Application
    Filed: July 20, 2021
    Publication date: January 26, 2023
    Inventors: Suresh Ramasamy, Ching Wei Chang, Lars Fredrik Proejts, Ravichandra Rama
  • Publication number: 20230021654
    Abstract: An information handling system includes an antenna controller that may receive, from a platform sensor, platform sensor information as to a physical configuration usage mode, and receive, from a proximity sensor, information as to a part of a body of a user to an antenna. The antenna controller may also obtain a radio transmit power level value corresponding to the platform sensor information and to the proximity sensing information, send the radio transmit power level value to a radio via a serial interface, and reconfigure the antenna in response to the platform sensor information and the proximity sensing information. A radio may adjust a radio transmit power level to an adjusted radio transmit power level based on the radio transmit power level value.
    Type: Application
    Filed: July 24, 2021
    Publication date: January 26, 2023
    Inventors: Suresh Ramasamy, Lars Fredrik Proejts, Ching Wei Chang, Ravichandra Rama
  • Publication number: 20230022822
    Abstract: An information handling system includes a data radio connected to an antenna system, and a proximity sensor connected to a proximity sensor probe. An antenna controller (AC) may determine whether a capacitance measurement coarsely indicates a specific antenna configuration or a coarse fault; and configure, when the capacitance measurement indicates a coarse fault, a data radio to operate at a failsafe radio transmit power level; determine, when the capacitance measurement indicates the specific antenna configuration, whether a detail capacitance measured with respect to the antenna system indicates proper antenna configuration or an out-of-range value; configure, when the detail capacitance indicates proper antenna configuration, the data radio to operate normally; and configure, when the detail capacitance indicates an out-of-range value, the data radio to operated in a mode where a performance parameter of the data radio is particularly monitored.
    Type: Application
    Filed: July 20, 2021
    Publication date: January 26, 2023
    Inventors: Lars Fredrik Proejts, Ravichandra Rama, Suresh Ramasamy
  • Publication number: 20230017005
    Abstract: An information handling system includes a wireless local area network (WLAN) radio and a system embedded controller (EC). An antenna controller may determine an antenna type from a group consisting of a passive antenna and an active antenna, map a platform-unique subsystem identifier in accordance with the antenna type, configure a heartbeat message path to the system EC based on the antenna type, and control a WLAN radio transmit power level based on a heartbeat status.
    Type: Application
    Filed: July 14, 2022
    Publication date: January 19, 2023
    Inventors: Suresh Ramasamy, Lars Fredrik Proejts, Ravichandra Rama, Ching Wei Chang